Control valve type Z1A

Single-ported globe control valves type Z1A are used in automatic and remote control instalations as flow control
Elements to adjust flow of liquids, steam and gases. Wide range of material and design versionsmakes the
Valves applicable in most demanding working conditions in power generation, petroleumchemistry, heating,
Chemical industry, metallurgy, etc. versions designated for Western Europe market can be marked BR12.

Nominal sizes DN15 ; 20 ; 25 ; 40 ; 50 ; 80 ; 100 ; 150 ; 200 ; 250 ; 300
Nominal pressure • PN10 ; 16 ; 25 ; 40 ; 63 ; 100 ; 160 ; 250 ; 320 ; 400 • CL150 ; CL2500
Flow ratios 0,01 ... 960 m3/h
Plug characteristics and type linear, contoured, equal percentage, quick-opening (on-off)
Rangeability 50:1, 100:1
Leakage class basic: class IV ; enhanced: class V ; tight (special) class VI
Temperature range - 196 ... + 650°C
Body material GP 240 GH carbon cast steel, WCB G17CrMo9-10 alloy cast steel, WC9 carbon cast steel, GX5CrNiMo acid resistant cast steel, CF8M
  • various materials of valve body and internal parts, adapted to specific working conditions
  • design provides noise reduction, enhanced resistance to cavitation and flashing, and elimination of choked flow
  • wide range of nominal pressures, PN10 to CL2500, and flow ratio and control characteristics
  • reduction in aggressive and toxic media emissions to environment through application of bellow seal bonnets or bonnet packings meeting requirements of TA-LUFT
  • easy assembly and dismantling of valve internal parts for maintenance and service
  • high durability and reliability due to application of top-class materials and surface improvement processes (burnishing, stelliting, heat treatment treatment, CrN coating)
  • Possibility of mating with reverse action P/R (column) and P1/R1 (cast yoke) multi-spring actuators, and changing the spring range with no extra parts (keeping the number of springs)
  • Possibility of fitting actuators with side-mounted (P1/R1) or top-mounted (P/R) handwheel
  • possibility of performing diagnostics of “valve - actuator” due to application of smart electro-pneumatic positioners
  • wide range of electric actuators
  • special designs for oxygen, hydrogen, gas fuels, low temperature fluids (liquid oxygen, liquid nitrogen), acid gasescontaining H2S with heat jacket; for potentially explosive atmospheres as per ATEX Directive 2014/34/EU
  • design and production process meet the requirements of QualityManagement System ISO 9001 and Directive 2014/34/EU, and regulations of AD2000 Merkblatt, designated for installation on pipelines.
We can adjust the control valve according to your individual needs. In such cases, please contact our technical support specialist.